We're dividing 72669878 by 578 
We want to divide 72669878 by 578.

Step 1:
The number 578 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 578

On to step 2:
578 goes into 72 0 times with a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Grab the next digit (6) from the dividend, add it to 72, then carry on: 726 / 578

Step 3:
When dividing 726 by 578, we get 1 with a remainder of 148.
The next digit of our result is 1. 
Result so far: 1.0
If we take 578 away from 726, we end up with 148.
Take the next digit (6) from the dividend and append it to 148, then repeat: 1486 / 578

Advancing to step 4:
When dividing 1486 by 578, we get 2 with a remainder of 330.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 1156 from 1486 leaves us with 330.
Include the next digit (9) from the dividend after 330, then repeat: 3309 / 578

Step 5:
578 goes into 3309 5 times with a remainder of 419.
Write down 5 as next digit of the result. 
Result so far: 125.0
If we take 2890 away from 3309, we end up with 419.
Grab the next digit (8) from the dividend, add it to 419, then carry on: 4198 / 578

Moving on to step 6:
4198 divided by 578 is 7 with a remainder of 152.
Put 7 as the next digit of the answer. 
Result so far: 1257.0
Deduct 4046 from 4198 and we're left with 152.
Fetch the next digit (7) from the dividend, attach it to 152 and continue: 1527 / 578

Going ahead to step 7:
578 goes into 1527 2 times with a remainder of 371.
The number 2 becomes the next digit in our result. 
Result so far: 12572.0
Subtracting 1156 from 1527 leaves us with 371.
Append the next digit (8) from the dividend to 371 and continue with: 3718 / 578

Let's proceed to step 8:
When dividing 3718 by 578, we get 6 with a remainder of 250.
The number 6 becomes the next digit in our result. 
Result so far: 125726.0
Subtracting 3468 from 3718 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 9:
When dividing 2500 by 578, we get 4 with a remainder of 188.
The next digit of our result is 4. 
Result so far: 125726.4
Subtracting 2312 from 2500 leaves us with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Advancing to step 10:
578 can be fit into 1880 3 times, resulting in a remainder of 146.
Write down 3 as next digit of the result. 
Result so far: 125726.43
The remainder is 146 after subtracting 1734 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

On to step 11:
If we divide 1460 by 578, we get 2 and a remainder of 304.
Use 2 as the next digit of our solution. 
Result so far: 125726.432
If we subtract 1156 from 1460, we get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Let's proceed to step 12:
3040 divided by 578 is 5 with a remainder of 150.
The number 5 becomes the next digit in our result. 
Result so far: 125726.4325
The remainder is 150 after subtracting 2890 from 3040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 13:
If we divide 1500 by 578, we get 2 and a remainder of 344.
Use 2 as the next digit of our solution. 
Result so far: 125726.43252
If we subtract 1156 from 1500, we get 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Advancing to step 14:
578 can be fit into 3440 5 times, resulting in a remainder of 550.
Record the quotient 5 as the next digit in the result. 
Result so far: 125726.432525
If we subtract 2890 from 3440, we get 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Step 15:
When dividing 5500 by 578, we get 9 with a remainder of 298.
Write down 9 as next digit of the result. 
Result so far: 125726.4325259
The remainder is 298 after subtracting 5202 from 5500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

Let's proceed to step 16:
578 can be fit into 2980 5 times, resulting in a remainder of 90.
Use 5 as the next digit of our solution. 
Result so far: 125726.43252595
If we subtract 2890 from 2980, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

The final outcome is 125726.43252595, with a leftover of 9e-08.